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| Operator: | United Automobile | Fleet No: | L39 |
| Chassis: | Bristol B | Chassis No: | B452 |
| Body: | United B32F | Body No: | 1668 |
| 1929 | In service with United Automobile Services Limited, Darlington (L39) |
| Oct 40 | On loan to London Passenger Transport Board, London (B103) - Based at Hartford |
| Jul 41 | Returned to United Automobile Services Limited, Darlington |
| Out of service with United Automobile Services Limited, Darlington (L39) |